Precision linear and rotary positioning stage MICROCONTROLE / SpectraPhysics
The XM is the ultimate solution for the most demanding manufacturing and test and measurement applications. It meets ultra-precision motion requirements with high dynamics and reliability for 24/7 production environments. Typical applications include semiconductor wafer inspection, sensor test and calibration, laser machining and ultra-precision assembly.
Unlike screw driven stages, the XM employs a center-driven, ironless linear motor as the driving element. Since the linear motor is a frictionless direct drive device, there is no backlash or hysteresis, wind-up or stiction limiting the motion performance. The linear motor drive also offers the advantage of higher speed, acceleration and system responsiveness with no wear to motor brushes or drive screws. The extra-large, ironless motor coil ensures zero cogging for ultra smooth velocity control and provides higher efficiency compared to alternative stage designs. This results in significantly less heat generation, which is generally the main limit for ultra-precision motion applications. To further improve thermal management and its effect on stage performance, the XM also has the benefit of a sophisticated length decoupling of the magnetic track from the stage carriage.
XM stages are machined from stress-relieved 7075 aluminum, ensuring long-term strength and stability. All critical stage surfaces undergo multiple machining processes and precision grinding under strict temperature and quality control to further improve overall performance and accuracy.
